Fae law prevents Sinn from mating, but the bikers have rules of their own -- nobody rides for free.
In a world where Fae desires overrule those of mere humans, Sinn is consumed with desire for her soulmate, Daka. However, Daka refuses to break the Fae law that prevents them from having sex without the queen's permission. Sinn finds a way to sate her sexual hunger in the company of three bikers.
They'll make a good tribute to the queen's appetites, too...